2001134344 has 64 divisors (see below), whose sum is σ = 4301922240. Its totient is φ = 864380160.

The previous prime is 2001134323. The next prime is 2001134353. The reversal of 2001134344 is 4434311002.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132862 + ... + 147154.

It is an arithmetic number, because the mean of its divisors is an integer number (67217535).

Almost surely, 2^2001134344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2001134344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150961120).

2001134344 is an abundant number, since it is smaller than the sum of its proper divisors (2300787896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001134344 is a wasteful number, since it uses less digits than its factorization.

2001134344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14390 (or 14386 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2001134344 is about 44734.0401037063. The cubic root of 2001134344 is about 1260.1592021900.

Adding to 2001134344 its reverse (4434311002), we get a palindrome (6435445346).

The spelling of 2001134344 in words is "two billion, one million, one hundred thirty-four thousand, three hundred forty-four".